bathe

Class BatheBooter

java.lang.Object

bathe.BatheBooter

public class BatheBooter
extends Object

This class takes the jar/war in the classpath, figures out what the classpath is, creates a new URL class loader, loads any BatheInitializer services in the right order according to precedence and then jumps in. author: Richard Vowles - http://gplus.to/RichardVowles Thanks to Karsten Sperling for the idea of embedding the jars into subdirectories and loading them into the URL classpath from there.

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	BATHE_EXTERNAL_CLASSPATH
protected boolean	foundClassDir
protected File	jar
protected String[]	passingArgs
protected String	runnerClass

Constructor Summary

Constructors

Constructor and Description
BatheBooter()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	attemptToGetJumpClassFromManifest()
protected URLClassLoader	createUrlClassLoader(File war, List<String> libraries) Creates a URL class loader out of the specified library offsets within the war file
protected List<String>	determineJarOffsets(File war) Extracts out the jars that are embedded in subdirectories and sets them up in a list to allow priority sorting and construction of a URLClassPath.
void	exec(ClassLoader loader, File runnable, String runnerClass, String[] args) Runs the main runner class in the specified class loader, passing in the WAR being run as well as the specified command line arguments.
protected File	getRunFile() This may end up needing to be more sophisticated if there is more than one jar on the command line.
protected URL[]	getSystemClassPath() Returns the URLs that make up the system class path.
static void	main(String[] args)
protected void	parseCommandLine(String[] args)
void	run(String[] args)
void	runWithLoader(URLClassLoader loader, File runnable, String runnerClass, String[] args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BATHE_EXTERNAL_CLASSPATH

protected static final String BATHE_EXTERNAL_CLASSPATH

See Also:

Constant Field Values

runnerClass

protected String runnerClass

jar

protected File jar

passingArgs

protected String[] passingArgs

foundClassDir

protected boolean foundClassDir

Constructor Detail

BatheBooter

public BatheBooter()

Method Detail

parseCommandLine

protected void parseCommandLine(String[] args)

attemptToGetJumpClassFromManifest

protected void attemptToGetJumpClassFromManifest()

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException

run

public void run(String[] args)
         throws IOException

Throws:

IOException

runWithLoader

public void runWithLoader(URLClassLoader loader,
                 File runnable,
                 String runnerClass,
                 String[] args)
                   throws IOException

Throws:

IOException

exec

public void exec(ClassLoader loader,
        File runnable,
        String runnerClass,
        String[] args)

Runs the main runner class in the specified class loader, passing in the WAR being run as well as the specified command line arguments.

createUrlClassLoader

protected URLClassLoader createUrlClassLoader(File war,
                                  List<String> libraries)

Creates a URL class loader out of the specified library offsets within the war file

determineJarOffsets

protected List<String> determineJarOffsets(File war)

Extracts out the jars that are embedded in subdirectories and sets them up in a list to allow priority sorting and construction of a URLClassPath.

getRunFile

protected File getRunFile()

This may end up needing to be more sophisticated if there is more than one jar on the command line. We would need to looking through for the one with this class in it.

Returns:

The main file we are running

getSystemClassPath

protected URL[] getSystemClassPath()

Returns the URLs that make up the system class path.